Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d63be10f6a38c0…

MALICIOUS

PDF

54.3 KB Created: 2020-07-28 21:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b4b788331c3ae95bb8544c4f69c083a SHA-1: c5a71bfb034a217cdb2c2a0f9269707b3d1f92aa SHA-256: 22d63be10f6a38c09aa31393efdcbbe31d69792de90234700d59a3f9c8888a78
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to a 'simple family monthly budget template' and includes a call-to-action phrase. The presence of numerous external PDF links further supports a link-farming or redirection-based attack pattern.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=simple+family+monthly+budget+template
    • http://files.corydixon.com/uploads/1/3/0/7/130775286/30d74.pdf
    • http://files.michelefioretti.com/uploads/1/3/2/6/132695516/pusanuxigo_vaxomo_vatusisonuja.pdf
    • http://files.rodrigocastrocornejo.com/uploads/1/3/0/7/130740213/nepolevuveritesaje.pdf
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/fosemekepabuzovirulera.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/6789944451.pdf
    • https://cdn.shopify.com/s/files/1/0432/6562/2184/files/25486235682.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/nesusariselofitizeg.pdf
    • https://cdn.shopify.com/s/files/1/0434/0957/1990/files/31254446087.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/ribisekifolofilomi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/3479384024.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/6648009231.pdf
    • https://cdn.shopify.com/s/files/1/0435/7806/5055/files/jodunepibaledumatuza.pdf
    • https://cdn.shopify.com/s/files/1/0432/3246/0960/files/10258078255.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f71.bin
038d39a9fd01a0ef1ebe1ce5cffdda18f4fa727d9c39dee2796b5341c8dadb03
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F71 5408 bytes
font_01_sfnt_off000091a5.bin
e478f1671e2c6b246b2c311d9fbf4d620b2ec3a5cdd20b5d4e05fcf9bafc1dfa
pdf-font-stream PDF embedded font (sfnt) at offset 0x91A5 10512 bytes
font_02_sfnt_off0000b5cf.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939
pdf-font-stream PDF embedded font (sfnt) at offset 0xB5CF 16312 bytes